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Palladium- and Nickel-Catalyzed Coupling Reactions of α-Bromoalkenylphosphonates with Arylboronic Acids and Lithium Alkenylborates

✍ Scribed by Yuichi Kobayashi; Anthony D. William

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
265 KB
Volume
346
Category
Article
ISSN
1615-4150

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✦ Synopsis

Abstract

The coupling reaction of the α‐bromoalkenylphosphonates with organoboranes was investigated. The palladium‐catalyzed arylation took place successfully with arylboronic acids, while alkenylation proceeded with lithium alkenylborates and a nickel catalyst. In addition, an intramolecular Diels–Alder reaction of the diene prepared by the alkenylation afforded the corresponding adduct.

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Palladium-Catalyzed Decarboxylative sp-s
Palladium-Catalyzed Decarboxylative sp-sp2 Cross-Coupling Reactions of Aryl and Vinyl Halides and Triflates with α,β-Ynoic Acids using Silver Oxide
✍ Hyunseok Kim; Phil Ho Lee 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 209 KB 👁 1 views

## Abstract Palladium‐catalyzed decarboxylative __sp‐sp__^2^ cross‐coupling reactions of aryl and vinyl halides and triflates with α,β‐ynoic acids using silver oxide have been developed. A variety of α,β‐ynoic acids were readily decarboxylated in the presence of silver oxide and then, generated __i